Liquid Fueled Engine Test Stand Testing, data acquisition, integration platform for liquid propellent based rocket components
Project Overview and motivation PSAS Goal Send a rocket above the 100 km Kármán line
The future of Portland State Aerospace Society Rockets ● LV-3 (Launch Vehicle 3, current design) Spring Launch o 6” diameter o Carbon Fiber construction o Solid Rocket motor o Testing platform for airframe o technologies § Electronic Nosecone Separation Ring (ENSR) § Reaction Control System (RCS)
The future of Portland State Aerospace Society Rockets ● LV-4 (Launch Vehicle 4) - larger version of LV-3 with: 100km launch capability o Switch to Liquid Fuel to maintain single o stage construction Technologies Enabling LV-4: o Reaction Control System § Cryogenic Carbon Fiber Tanks § Electric Propellent Feed § Thrust Vanes or Gimballing § Engine Throttling §
Liquid Fuel Engine Test Stand ● 2.2 kN thrust ground-test engine Liquid Oxygen(LOX) + Isopropyl alcohol o (IPA) Liquid Oxygen centered pintle injection o Gaseous Oxygen spark-torch ignition o Regeneratively cooled o combustion chamber Direct Metal Laser Sintering 3D-printed o AlSi10Mg § Thank you i3DMFG !
Liquid Fuel Engine Test Stand Engine Design Fuel port LOX Port Pintle Cooling Channels Fuel Metering Annular Orifice
Liquid Fuel Engine Test Stand Pintle Injector Active sub-project ● Prototype has been produced ● Manufacturing process for design has been documented
Liquid Fuel Engine Test Stand Pintle Injector Cold Flow Test Jig ● Test Jig has been built ● Test procedure is under development Project is being overseen by an industry advisor
Liquid Fuel Engine Test Stand Purpose: To allow for the safe testing and flight integration of liquid propellant engines and related technologies.
Liquid Fuel Engine Test Stand General requirements: Data and Analysis ● Controlled Remotely By a Computer ● Measure engine performance characteristics
Liquid Fuel Engine Test Stand General requirements: Functionality ● Deliver propellants to test engine ● Provide a reliable source of ignition ● Modular, used for multiple engines
Lox Handling with the Air National Guard General requirements: Safety
Liquid Fuel Engine Test Stand General requirements: Safety ● Physical design to mitigate hazards ● Default to failsafe mode ● Computerized safety procedure ● Physically isolatable from computer
Liquid Fuel Engine Test Stand Documentation and Safety ● Identify potential hazards ● Storage and transportation best practices
Liquid Fuel Engine Test Stand Documentation and Safety ● University Risk Management Meetings ○ Insurance ○ SOP’s and documentation ○ Transportation
Liquid Fuel Engine Test Stand Test Stand Design: FEA
Liquid Fuel Engine Test Stand Frame Construction
Piping and Instrumentation Diagram (P&ID)
P&ID: Pressure Panel
P&ID: Pressure Panel
Piping and Instrumentation Diagram (P&ID)
P&ID: Pressure Feed System
P&ID: Pressure Feed System
Piping and Instrumentation Diagram (P&ID)
P&ID: Fuel Line
Piping and Instrumentation Diagram (P&ID)
P&ID: LOX Line
Piping and Instrumentation Diagram (P&ID)
P&ID: Igniter
P&ID: Igniter Testing
Piping and Instrumentation Diagram (P&ID)
P&ID: Purge Line
New Member Orientation
TSAR - Test Stand Automation and Regulation ● Control of the firing sequence from desktop application via Wifi ● Separate sensing from engine control ● Engine control microprocessor written in C for fast failure detection
Real Time Calculations ● Thrust ● Mass Flow Rate ● Temperature ● Critical Pressures ● And More!
Bill of Materials
Bill of Materials (Continued)
Bill of Materials (Continued...)
Test Stand Projects What's Next for LFETS? ● Test the Pintle ● Test and refine Augmented Spark Igniter ● Main Fuel Valve (hydraulic load testing) ● Main LOX Valve (Code and refine, test with LN2) ● Capacitive LOX Fill Level Sensor ● LOX safe Cavitating Venturi (flow rate sensor) ● Final build, testing and analysis of stand ● Live Engine Test
Future Test Stand flight hardware integration Cryogenic Carbon Electronic Feed System (EFS) Fiber Fuel Tank (CFT)
Our thanks to Oregon Space Grant Consortium and NASA for their support.
Recommend
More recommend
